Darrel Deval is on a
looping roller coaster ride.
He is right-side up at the
bottom of the loop and
traveling at high speed.
Identify the free-body
diagram that shows the
type and direction of the
forces acting on Darrel at
the bottom of the loop.

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?